Eduqas GCSE Mathematics Statistics overview quiz quiz
12questions. Pick an answer and you'll see why right away.
Which of these is a continuous variable?
A college of 1000 takes a stratified sample of 50. A department has 200 students. How many should be sampled from it?
Find the median of .
From a frequency table, and . What is the mean?
To estimate the mean of grouped data, what value represents each class?
In a survey of 90 people, 45 chose pizza. What angle represents pizza on a pie chart?
A histogram bar spans a class of width 10 and has a frequency density of 3.5. What is its frequency?
What does a box plot's interquartile range measure?
Points on a scatter graph rise from bottom left to top right in a loose, scattered band. How is the correlation described?
Using a line of best fit to predict a value within the range of the plotted data is called what?
A study finds that ice-cream sales and the number of sunburn cases are strongly correlated. What can you conclude?
A researcher only surveys people in a library about how much they read. Why is this biased?